From exquisite, two-stroke works of art, to four-stroke asthmatic donkeys
MOTO3 REGS for the 125 replacement class were released at Valencia, with the GP Commission finalising technical regulations for the 250 single-cylinder four-strokes.The new series, due to start in 2012, restricts maximum bore size to 81 mm. Other rules include:A rev limit of 14,000 rpmEight engines per rider for the full season.A maximum of four valves, and a single ignition driver. Variable-length inlet tracts are not allowed.Hydraulic or pneumatic valve systems are banned, as are fly-by-wire throttle systemsCamshaft drive must be by chain rather than gear.Variable valve timing or valve opening are banned.Direct injection is not allowed, and fuel pressure maximum is five bar.The maximum price of the engine, including special parts or service contracts, is 12,000 euros.Engine manufacturers must be prepared to supply a minimum of 15 riders.Engine updates or upgrades must be available to all customers at the same time.Six gears maximum, with a maximum of two alternate ratios for each gear. Two alternate primary drive ratios are permitted.A control ECU will govern ignition and fuel injection, and include a rev limiter. Tuning options will be included in the supplied software, and the organisers can swap ECUs at any time; standardised data-logging systems must be used.Chassis must be prototypes, with a minimum total weight of motorcycle and rider of 148 kg.Carbon brakes are banned, as are active and semi-active suspension systems, which must use steel springs.
Posted: 09/11/2010 at 19:17
First Moto Poo, now Moto Wee. How sad. Development stifled again. Funny how they used to use the (poor) excuse that the exciting 500s had to go because they had reached the end of their development (and conveniently forgot to mention that lap times didn't improve because the minimum weight was increased, funny fuels were banned etc which slowed them down). Looks like these bikes are going to be at the end of their development before they even start.
Moto Poo (sorry 2) was bad enough, but I can't really see what these bikes have got to contribute technically to the day's racing. It seems like it is all about feeder classes for the celebrity racer stars to Moto GP which is boring to watch in any case (Valencia being the exception) and the technical aspect is no longer welcome. Ironically, there is no denying the Moto 2 is well supported and the racing close but what is the likelyhood and incentive for the engine supplier for next years bikes to be better than this one given all the restrictions?
In Moto Wee( I mean 3) at least we can look forward to different engine manufacturers but the cynical in me, tells me that the rules have been designed to favour one manufacturer...
Posted: 10/11/2010 at 04:19
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